(1)stainless steel material we usually made:304,316,17-4PH,CF8M

(2)alloy steel material:Q 345,GS20MN2,ZG45,4140,20CRMO,42CRMO,8620,20CRMONI,8630

(3)nodular cast iron: 65-45-12,GGG40,GGG50

(4)Process: Sand casting ,investment casting ,die casting ,permanent mold casting

(5) Surface finish :polishing ,sandblasting .painting and PVC powder,blacking and so on

belt tensioner